class_docstr: A ZMQ socket in a simple blocking API
code: def close(self):
      if self.socket is not None:
          try:
              self.socket.close(linger=0)
          except Exception:
              pass
          self.socket = None
  
file_path: catboost/contrib/python/jupyter-client/py2/jupyter_client/blocking/channels.py
label_desc: Use image node_id 6 for calling the ZMQSocketChannel obj's underlying member method code with example usage: obj.close() without return types